Application of binomial system-based reliability in optimizing resistance factor calibration of redundant pile groups

Alhashmi, Abdalla Elhadi; Oudah, Fadi; Naggar, M. Hesham El

doi:10.1016/j.compgeo.2020.103870

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…The soil parameters are always varying from one place to the other. In a recent article, Alhashmi et al [11] used a reliability method based on binomial systems to optimize the calibration of resistance factor in redundant pile groups. The application of binomial system-reliability is challenged by the need to determine a framework for calculating a key input variable related to the maximum number of defective piles "m" a pile group can have without collapsing under applied loads (Figure 2).…”

Section: Optimization Methods For Foundationsmentioning

confidence: 99%

Recent Tendencies in the Use of Optimization Techniques in Geotechnics: A Review

Boumezerane

2022

Geotechnics

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The use of optimization methods in geotechnics dates back to the 1950s. They were used in slope stability analysis (Bishop) and evolved to a wide range of applications in ground engineering. We present here a non-exhaustive review of recent publications that relate to the use of different optimization techniques in geotechnical engineering. Metaheuristic methods are present in almost all the problems in geotechnics that deal with optimization. In a number of cases, they are used as single techniques, in others in combination with other approaches, and in a number of situations as hybrids. Different results are discussed showing the advantages and issues of the techniques used. Computational time is one of the issues, as well as the assumptions those methods are based on. The article can be read as an update regarding the recent tendencies in the use of optimization techniques in geotechnics.

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Section: Optimization Methods For Foundationsmentioning

confidence: 99%

Recent Tendencies in the Use of Optimization Techniques in Geotechnics: A Review

Boumezerane

2022

Geotechnics

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“…Design standards usually adopt different calculation methods for bearing capacity, so the coefficient of pile resistance of any two standards may differ substantially 22 – 26 . The current Chinese code, “Technical code for building pile foundations” (JGJ94-2008) 27 , has a simple and straightforward method for calculating the vertical ultimate bearing capacity of rock-socketed piles.…”

Section: Introductionmentioning

confidence: 99%

Vertical compressive bearing performance and optimization design method of large-diameter manually-excavated rock-socketed cast-in-place piles

Zhao,

Yan,

Bai

et al. 2023

Sci Rep

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To study the vertical compressive bearing characteristics of large-diameter rock-socketed cast-in-place piles, eight manually-excavated rock-socketed cast-in-place piles were subjected to vertical compressive on-site load and pile stress tests. The test results showed that the load–displacement (Q-s) curves of the eight test piles were all slow-varying, and the settlement of the piles was less than 11 mm, which met the minimum engineering requirements. The unloading rebound rate was between 55 and 75%, and the elastic working properties of the piles were apparent. The pile axial force gradually decreased with depth, and the slope of the axial force distribution curve reached a minimum in the moderately weathered muddy siltstone layer while the pile side friction resistance reached its maximum value. Pile end friction increases with the increase of load. But the pile end resistance was inversely proportional to the single pile length-to-diameter (L/D) ratio and the depth of rock embedment for the pile. The percentage of pile side friction resistance under maximum load was 86%, indicating that these were characteristic friction piles. Based on the test results and the current Chinese code, the friction coefficient of the pile side soil layer η and the total resistance coefficient of the rock-socketed section ζ were introduced. A revision to the calculation equation for the vertical bearing capacity of the rock-socketed cast-in-place pile in the code was proposed, together with an optimization design method for large-diameter rock-socketed cast-in-place piles.

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Effect of Random Fields in Stochastic FEM on the Structural Reliability Assessment of Pile Groups in Soil

Khorramian,

Alhashmi,

Oudah

2024

Lecture Notes in Civil Engineering

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Application of binomial system-based reliability in optimizing resistance factor calibration of redundant pile groups

Cited by 7 publications

References 13 publications

Recent Tendencies in the Use of Optimization Techniques in Geotechnics: A Review

Recent Tendencies in the Use of Optimization Techniques in Geotechnics: A Review

Vertical compressive bearing performance and optimization design method of large-diameter manually-excavated rock-socketed cast-in-place piles

Effect of Random Fields in Stochastic FEM on the Structural Reliability Assessment of Pile Groups in Soil

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